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A study on the User Experience at Unmanned Checkout Counter Using Big Data Analysis (빅데이터 분석을 통한 무인계산대 사용자 경험에 관한 연구)

  • Kim, Ae-sook;Jung, Sun-mi;Ryu, Gi-hwan;Kim, Hee-young
    • The Journal of the Convergence on Culture Technology
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    • v.8 no.2
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    • pp.343-348
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    • 2022
  • This study aims to analyze the user experience of unmanned checkout counters perceived by consumers using SNS big data. For this study, blogs, news, intellectuals, cafes, intellectuals (tips), and web documents were analyzed on Naver and Daum, and 'unmanned checkpoints' were used as keywords for data search. The data analysis period was selected as two years from January 1, 2020 to December 31, 2021. For data collection and analysis, frequency and matrix data were extracted through Textom, and network analysis and visualization analysis were conducted using the NetDraw function of the UCINET 6 program. As a result, the perception of the checkout counter was clustered into accessibility, usability, continuous use intention, and others according to the definition of consumers' experience factors. From a supplier's point of view, if unmanned checkpoints spread indiscriminately to solve the problem of raising the minimum wage and shortening working hours, a bigger employment problem will arise from a social point of view. In addition, institutionalization is needed to supply easy and convenient unmanned checkout counters for the elderly and younger generations, children, and foreigners who are not familiar with unmanned calculation.

A Literature Review on the Evidence that Hemorrhoids Were Included in the Efficacy of LU6 (공최(LU6)를 활용한 치질치료의 근거에 대한 문헌고찰)

  • Cho, Eunbyul;Kim, Cheoung Su;Nam, Yeonkyeong;Sang O;Yang, Seung Bum;Kim, Jae-Hyo
    • Korean Journal of Acupuncture
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    • v.38 no.4
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    • pp.235-249
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    • 2021
  • Objectives : Acupoint LU6 (Gongchoe) is known as an acupoint for the treatment of pain and bleeding caused by hemorrhoids. The purpose of this study was to critically review acupoint LU6 for treating hemorrhoids. Methods : We searched both ancient and modern literature of acupuncture and moxibustion using keywords "Gongchoe" and "hemorrhoids". We further performed an online ancient literature search for crosscheck. The searched literature was stratified by country (Korea, China, and Japan), and data were organized chronologically. Concerning literature related to hemorrhoids, data based on acupuncture treatment were compiled. Results : The bone proportional measurement of the forearm had been 12.5 cun until the Qing Dynasty but was recorded as 10 cun in "Shinkyushinzui," and the majority of modern Japanese and Korean literature indicated it as 10 cun. Gongchoe for treating hemorrhoids has been reported in the literature, including "Shinkyushinzui" (Japan, 1941), "Shiyoungzongguozhenjiujingxuexue" (Taiwan, 1963), "Gyeonghyeolhak" (Korea, 1971), and "Jinzhenmeihuashichao" (China, late Qing dynasty), but except "Jinzhenmeihuashichao", the location is different from the World Health Organization (WHO) standard acupoint location as it is 7 cun from the wrist out of 10 cun of the forearm bone proportional measurement. In addition, classical guides published until the Qing Dynasty did not report acupoint LU6 for the treatment of hemorrhoids. Conclusions : It is necessary to distinguish between Gongchoe in "Shinkyushinzui" and LU6 in WHO standard acupuncture point locations. Gongchoe (LU6)'s primary treatment for hemorrhoids has not been described in the classical literature, and further clinical evidence is needed to support it. When using Gongchoe for hemorrhoids, we should consider that the location of Gongchoe is closer to the LU5 than the standard acupuncture point locations and it is meaningful not only for treatment but also for diagnosis.

Accuracy of CAD-CAM RPD framework according to manufacturing method: A literature review (국소의치 구조물(framework)의 CAD-CAM 제조방식에 따른 정확도: 문헌고찰)

  • Yi, Yuseung
    • The Journal of Korean Academy of Prosthodontics
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    • v.59 no.3
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    • pp.370-378
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    • 2021
  • Purpose. The purpose of this study was to evaluate the currently published literatures investigating the accuracy of computer-aided design and computer-aided manufacturing removable partial denture (CAD-CAM RPD) framework with different manufacturing techniques and methods. Materials and methods. A comprehensive search for literatures was conducted in PubMed database using specific keywords with the patient, intervention, comparison, and outcome (PICO) question, "Is there a difference in accuracy of RPD frameworks manufactured using digital workflow according to the manufacturing process and methods?" Results. A total of 7 articles were selected. Two studies compared intraoral scanning and laboratory scanning for RPD frameworks and had heterogenous results. In the studies using different manufacturing process, RPD frameworks had clinically acceptable accuracy in both subtractive and additive manufacturing. Polyetheretherketone (PEEK)-milled RPD frameworks showed higher fit accuracy than traditionally casted or 3D printed RPDs. Direct milling method showed a higher accuracy than indirect milling method. However, in rapid prototyping, indirect method showed higher accuracy than direct method. Conclusion. The RPD frameworks fabricated using CAD-CAM technology showed a clinically acceptable level of accuracy regardless of manufacturing process or techniques. Consistent results have not been reported regarding the digital impression methods, which were intra oral scanning or laboratory scanning, and further studies are needed.

A Systematic Review of Cognitive Orientation to Daily Occupational Performance for Children with Developmental Coordination Disorder (발달성협응장애 아동의 인지기반 작업수행(Cognitive Orientation to daily Occupational Performance; CO-OP) 중재에 대한 체계적 고찰 )

  • Choi, Yeon-Woo;Kim, Kyeong-Mi
    • The Journal of Korean Academy of Sensory Integration
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    • v.20 no.3
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    • pp.72-85
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    • 2022
  • Objective : This study was conducted to examine self-selected goals and the outcome measures used in the Cognitive Orientation to daily Occupational Performance (CO-OP) approach for Developmental Coordination Disorder. Methods : Studies published from January 2012 to October 2022 in the PubMed, Embase, ScienceDirect, Cochrance Library databases were searched. Keywords used for search were ('developmental coordination disorder' OR 'DCD') AND ('Cognitive Orientation to daily Occupational Performance' OR 'Cognitive Orientation to Occupational Performance' OR 'CO-OP'). Among 211 searched studies, 7 selected studies that match the thesis of this study were analyzed. Results : The selected studies showed a relatively high level of evidence overall, including two randomized experimental studies, one non-random two-group study, three non-random one-group studies, one single-subject study. The self-selected goals preference of the children was high in the order of play, education, and daily life activities. Most of applicable sessions were conducted 10 times during a 1-h period, and intervention effects showed positive outcomes on the occupation performance motor domain. To measure the effectiveness of CO-OP, the improvement of occupational performance was evaluated using Canadian Occupational Performance Measure (COPM) and Performance Quality Rating Scale (PQRS), and the improvement of motor skills was evaluated using Movement Assessment Battery for Children (M-ABC). Conclusion : This study is expected to be used as basic clinical data when applying the CO-OP approach to Developmental Coordination Disorder.

Serum Biomarkers for Cardiovascular Disease and Atrial Fibrillation in Ischemic Stroke: A Systematic Review and Meta-Analysis (허혈성 뇌졸중에서 심혈관 질환과 심방세동을 위한 혈청 바이오마커: 체계적 문헌 고찰과 메타분석)

  • Myoung Soo, Woo;Sora, Mun;Jiyeong, Lee
    • Korean Journal of Clinical Laboratory Science
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    • v.54 no.4
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    • pp.256-264
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    • 2022
  • Ischemic stroke is caused by an occlusion by a thrombus or embolus in a cerebral artery, preventing oxygenated blood from reaching the brain and causing the necrosis of nerve cells. This paper summarizes the serum candidate markers associated with cardiovascular disease and atrial fibrillation (AF) disease that enable an early diagnosis of ischemic stroke studied thus far and compares the odds ratio (OR) of each marker. This study examined the effect size of these serum candidate markers using meta-analysis techniques. The academic database search screening for articles containing the keywords "cardiovascular disease," "atrial fibrillation," "ischemic stroke," and "serum marker" was limited to results for patients with ischemic stroke. The most derived markers in this study were N-terminal pro-B-type natriuretic peptide (NT-pro-BNP), D-dimer, C-reactive protein (CRP), and glial fibrillary acidic protein (GFAP), the rest being investigated individually. In conclusion, NT-pro-BNP appears to be very useful for the early diagnosis of ischemic stroke. Primarily, it is a marker of AF, and more AF markers will be uncovered and studied in the future.

Efficiency and accuracy of artificial intelligence in the radiographic detection of periodontal bone loss: A systematic review

  • Asmhan Tariq;Fatmah Bin Nakhi;Fatema Salah;Gabass Eltayeb;Ghada Jassem Abdulla;Noor Najim;Salma Ahmed Khedr;Sara Elkerdasy;Natheer Al-Rawi;Sausan Alkawas;Marwan Mohammed;Shishir Ram Shetty
    • Imaging Science in Dentistry
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    • v.53 no.3
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    • pp.193-198
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    • 2023
  • Purpose: Artificial intelligence (AI) is poised to play a major role in medical diagnostics. Periodontal disease is one of the most common oral diseases. The early diagnosis of periodontal disease is essential for effective treatment and a favorable prognosis. This study aimed to assess the effectiveness of AI in diagnosing periodontal bone loss through radiographic analysis. Materials and Methods: A literature search involving 5 databases (PubMed, ScienceDirect, Scopus, Health and Medical Collection, Dentistry and Oral Sciences) was carried out. A specific combination of keywords was used to obtain the articles. The PRISMA guidelines were used to filter eligible articles. The study design, sample size, type of AI software, and the results of each eligible study were analyzed. The CASP diagnostic study checklist was used to evaluate the evidence strength score. Results: Seven articles were eligible for review according to the PRISMA guidelines. Out of the 7 eligible studies, 4 had strong CASP evidence strength scores (7-8/9). The remaining studies had intermediate CASP evidence strength scores (3.5-6.5/9). The highest area under the curve among the reported studies was 94%, the highest F1 score was 91%, and the highest specificity and sensitivity were 98.1% and 94%, respectively. Conclusion: AI-based detection of periodontal bone loss using radiographs is an efficient method. However, more clinical studies need to be conducted before this method is introduced into routine dental practice.

Abbreviation Disambiguation using Topic Modeling (토픽모델링을 이용한 약어 중의성 해소)

  • Woon-Kyo Lee;Ja-Hee Kim;Junki Yang
    • Journal of the Korea Society for Simulation
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    • v.32 no.1
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    • pp.35-44
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    • 2023
  • In recent, there are many research cases that analyze trends or research trends with text analysis. When collecting documents by searching for keywords in abbreviations for data analysis, it is necessary to disambiguate abbreviations. In many studies, documents are classified by hand-work reading the data one by one to find the data necessary for the study. Most of the studies to disambiguate abbreviations are studies that clarify the meaning of words and use supervised learning. The previous method to disambiguate abbreviation is not suitable for classification studies of documents looking for research data from abbreviation search documents, and related studies are also insufficient. This paper proposes a method of semi-automatically classifying documents collected by abbreviations by going topic modeling with Non-Negative Matrix Factorization, an unsupervised learning method, in the data pre-processing step. To verify the proposed method, papers were collected from academic DB with the abbreviation 'MSA'. The proposed method found 316 papers related to Micro Services Architecture in 1,401 papers. The document classification accuracy of the proposed method was measured at 92.36%. It is expected that the proposed method can reduce the researcher's time and cost due to hand work.

The Effect of Taeksa-tang for Dyslipidemia: A Systematic Review and Meta-Analysis (이상지질혈증에 대한 택사탕(澤瀉湯)의 효과 : 체계적 문헌 고찰 및 메타 분석)

  • Yeong-seo Lee;Tae-young Huh;Kyoung-min Kim
    • The Journal of Internal Korean Medicine
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    • v.44 no.3
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    • pp.485-505
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    • 2023
  • Objective: The purpose of this study is to assess the effectiveness and safety of using Taeksa-tang for dyslipidemia through a systematic review and meta-analysis of randomized controlled trials (RCTs). Methods: The search was conducted using keywords such as "dyslipidemia", "hyperlipidemia", "taeksa tang", "zexie tang", and "takusha to" in 12 databases (Pubmed, Cochrane, Embase, ScienceDirect, CNKI, Wanfang, CiNii, RISS, KISS, ScienceON, OASIS, and DBpia) on April 13, 2023. There were no limits on the publication period and language. Cochrane's risk of bias (RoB) was used to evaluate the quality of the studies. A meta-analysis was conducted according to the outcome measurements such as total effective rate (TER), total cholesterol (TC), triglyceride (TG), HDL-cholesterol (HDL-C), LDL-cholesterol (LDL-C), and adverse effects, using the Review Manager web. Results: A total of 9 RCTs were selected. In evaluating the RoB, 2 studies mentioning the random sequence generation, 1 study conducting double blindness, and 8 studies without missing values were evaluated as low risk, while 1 study without mentioning the random sequence generation was evaluated as high risk. All other parts were evaluated as unclear risk. The treatment group (Taeksa-tang or Taeksa-tang-gagam) showed more statistically significant effects compared to the control group (Western medicine or Chinese patent medicine) in TER (RR : 1.24, 95% CI 1.15 to 1.34, P<0.00001), TC (MD : -1.12, 95% CI -1.68 to -0.56, P<0.0001), TG (MD : -1.08, 95% CI -1.65 to -0.51, P=0.0002), HDL-C (MD : 0.63, 95% CI 0.34 to 0.93, P<0.0001), LDL-C (MD : -0.81, 95% CI -1.10 to -0.53, P<0.00001). In addition, the treatment group showed lower adverse effects compared to the control group (RR : 0.30, 95% CI 0.12 to 0.74, P=0.008). Conclusion: This study suggests that Taeksa-tang is effective and safe to use for treating dyslipidemia. However, due to the low quality of the included studies, more clinical studies need to be conducted in the future to increase the possibility of clinical use.

Intervention of Swallowing Disorder in Dementia Patient: A Systematic Review (치매환자의 삼킴장애 중재에 관한 체계적 고찰)

  • Park, Chi-Soo;Ham, Min-Joo;Hong, Deok-Gi;Yoo, Doo-Han
    • Therapeutic Science for Rehabilitation
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    • v.11 no.1
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    • pp.21-33
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    • 2022
  • Purpose : The purpose of this study was to establish scientific evidence though a systematic review, of the existing interventional methods and their respective effects, for swallowing disorders among dementia patients. The interventional methods were based on patient characteristics. Methods : An electronic literature search was performed using five electronic databases from 2010 to 2020. The keywords were 'Dementia', 'Alzheimer disease', 'Deglutition disorder', 'Swallowing disorder', 'Dysphagia'. Five articles met the inclusion criteria. Results : One study with moderate-to-severe and four studies with severe dementia patients were included. The interventions consisted of one remedial intervention, three compensatory interventions, and one comprehensive intervention. Compensatory intervention, including behavioral and psychological management, were used in moderate-to-severe patients. For the severe patients, remedial, compensatory, and comprehensive intervention were used to address the feeding tube problem. The interventions used in each study had a positive effect on the outcome variables associated with swallowing ability. Conclusion : The purpose of the intervention and the intervention factors changed depending on the patient's dementia stage. The intervention was effective when considering the progressive stage of the patient. These results may serve as a guide in designing effective interventions for swallowing disorders in dementia patients.

Methodological Quality Evaluation of a Meta-Analysis Study of Rehabilitation Treatment Interventions for Stroke Patients in Korea Applying AMSTAR-2: Focusing on Upper Extremity Function and Recovery of Daily Life (AMSTAR-2를 적용한 국내 뇌졸중 환자의 재활치료 중재 메타분석 연구의 방법론적 질 평가: 상지기능과 일상생활회복을 중심으로)

  • Hwang, Ho-Sung;Ham, Min-Joo
    • The Journal of the Korea Contents Association
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    • v.22 no.8
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    • pp.660-670
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    • 2022
  • This study was analyzed by applying AMSTAR-2, a methodological quality evaluation tool, to evaluate the quality of domestic meta-analysis papers on rehabilitation interventions for stroke patients. The purpose of this study is to provide guidelines for qualitative improvement of evidence-based practice and meta-analysis research by analyzing the qualitative level of the analyzed research. The literature search was conducted using the Research Information Sharing Service, Korean Medical database, and Korean studies Information Service System. Two authors searched, extracted, and reviewed literature using the keywords 'stroke' and 'meta-analysis'. As a result of the AMSTAR-2 quality evaluation of the final 18 studies, 3 studies (16.67%) were 'Moderate', 8 studies (44.44%) were 'Low', and 7 studies (38.89%) were 'Critically Low'. In future research, scientific and objective data selection and extraction process should be performed. It is expected that interest and efforts to improve the quality of meta-analysis research will continue by referring to the contents analyzed in this study as a way to improve the quality of literature.